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[88.112.131.206]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2ec05c16f00sm1240211fa.61.2024.06.13.01.19.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Jun 2024 01:19:42 -0700 (PDT) Message-ID: <68a18159-11ff-412c-b742-34ceb0f3a028@linaro.org> Date: Thu, 13 Jun 2024 11:19:34 +0300 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V4 1/8] clk: qcom: clk-alpha-pll: Fix CAL_L_VAL override for LUCID EVO PLL To: Ajit Pandey , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Vinod Koul Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Taniya Das , Jagadeesh Kona , Imran Shaik , Satya Priya Kakitapalli , stable@vger.kernel.org, Dmitry Baryshkov References: <20240611133752.2192401-1-quic_ajipan@quicinc.com> <20240611133752.2192401-2-quic_ajipan@quicinc.com> Content-Language: en-US From: Vladimir Zapolskiy In-Reply-To: <20240611133752.2192401-2-quic_ajipan@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Ajit, On 6/11/24 16:37, Ajit Pandey wrote: > In LUCID EVO PLL CAL_L_VAL and L_VAL bitfields are part of single > PLL_L_VAL register. Update for L_VAL bitfield values in PLL_L_VAL > register using regmap_write() API in __alpha_pll_trion_set_rate > callback will override LUCID EVO PLL initial configuration related > to PLL_CAL_L_VAL bit fields in PLL_L_VAL register. > > Observed random PLL lock failures during PLL enable due to such > override in PLL calibration value. Use regmap_update_bits() with > L_VAL bitfield mask instead of regmap_write() API to update only > PLL_L_VAL bitfields in __alpha_pll_trion_set_rate callback. > > Fixes: 260e36606a03 ("clk: qcom: clk-alpha-pll: add Lucid EVO PLL configuration interfaces") > Cc: stable@vger.kernel.org > Signed-off-by: Ajit Pandey > Reviewed-by: Dmitry Baryshkov thank you for the fix! Acked-by: Vladimir Zapolskiy -- Best wishes, Vladimir